<template>
  <div class="login_container">
    <div class="login_box">
        <!-- 头像区域 -->
      <div class="avator_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
      </el-form-item>
      <el-form-item class="btns">
        <el-button type="primary" @click="login">登录</el-button>
        <el-button type="info" @click="resetLoginForm">重置</el-button>
      </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(valid => {
        if (!valid) {
          return this.$message.error('请重新填写')
        }
        this.$http.post('login', this.loginForm).then(res => {
        //   console.log(res)
          const data = res.data
          if (data.meta.status === 400) {
            this.$message.error('登录失败')
          } else {
            this.$message({
              message: '登录成功',
              type: 'success'
            })
            window.sessionStorage.setItem('token', data.data.token)
            this.$router.push('/home')
          }
        })
      })
    }
  }
}
</script>

<style scoped>
    .login_container{
      background-color: #2b4b6b;
      height: 100%;
    }
    .login_box{
      background-color: #fff;
      height: 300px;
      width: 450px;
      border-radius: 3px;
      position: absolute;
      left: 50%;
      top:50%;
      transform: translate(-50%, -50%);
    }
    .avator_box{
      width: 130px;
      height: 130px;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      background: #eee;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
    }
    .avator_box img{
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
    .login_form{
      width: 100%;
      position: absolute;
      bottom: 0;
      padding: 10px;
      box-sizing: border-box;
    }
    .btns{
      display: flex;
      justify-content: flex-end;
    }
</style>
